Derek is one angry werewolf. This is a photo from the Teen Wolf episode "Currents."
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Sometimes it's safer not to come out of the closet on Teen Wolf. "Currents" is the seventh episode of the show's third season.
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Teen Wolf Season 3 Episode 7 Quotes

Ethan: I'm not going to hurt him.
Scott: Why should I believe you?
Ethan: Because we knew one of them would be important to you, and now we know it's Lydia.

I honestly thought I would never have to burden you like this, but you're my only hope. I'm going to be taken. I need you to find me.

Dr. Deaton